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need help with speed optimization. this procedure draws a sprite with mask from memory onto the screen with x-coordinate in pixels. it doesn't shift sprites in realtime, it just uses …
... are prepared to sacrifice some memory when you have used a ... difficult to do it very fast. But if you tailor your ... speed, albeit while sacrificing some memory. For instance, the easiest way ... -
Interrupts details questionSuppose I am writing a game and I want to use interrupts to measure time, draw the screen without flicker, maybe to poll keyboard etc. What kinds of …
... when you run out of memory. for example in a shoot ... enemies you draw them by fast routines and then you have ... -
3d Code... simple Anyone know where I can get some examples of 3d routines written in basic... I`ve done some googling, and come up with some source for PowerBasic or…
... code. With a super fast machine with unlimited memory, you don't ... -
I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
... use as spectrum memory. You need to copy the 48k ROM file ... /> Maintain a pointer into that memory, and call it "z80_pc" or ... initialise it to point at memory location 0 (zero).
< ... more bytes sequentially from your memory space for various parameters the ... -
I would like to write emulatorHi guys, I'm new to this forum but I realise that you must get loads of posts from people asking "how do I write an emulator" so I'll try and be spe…
[quote]A region of memory, 65536 bytes in length, to use as spectrum memory. You need to copy the 48k ROM file into the bottom 16k of that.[/quote]
How do you copy 48K of information into 16K of space?
MadDoc, -
Cylu doesn't work in 128KI've played hundreds of 48K games on my original Spectrum 128K+, and all of them load fine, which is more than can be said for the plus2 Spectrums. H…
... side (a lot of rewinding/fast forwarding involved here :D ) of ... could be a totally false memory though and there's no ... -
Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …
... AF' actually slows down the copy. I would drop using AF ... dedicated counter rather than using memory location COUNT.
The ... back buffer to display copy should do the copy in display line ... frame to perform a seemless copy with no screwed lines. This ... -
Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …
... ...
How can I copy 2/3 of the screen ... MOVING 256 BYTES FORWARD IN MEMORY TO FB0AH
LD H ... -
Smooth Color Masked Sprites using fast page flip on 48kHere is a quick demo of using char based sprites using the Page flip method: a) Background is copied to buffer b) Sprites drawn on buffer c) Buffer …
... a background, but I only copy this when rendering the char ... MOVING 256 BYTES FORWARD IN MEMORY TO FB0AH
LD H ... -
8 BIT WARSwhen 8bits ruled the home market Speccys, C64 and Amstrad were the big 3 fighting it out for supremecy.... but they didnt survive which as we know wa…
... capable of addressing much more memory...
"
You may ... scrolling games, although things like Fast Food seem to use this ... more clever way of addressing memory, the standard CPC464 had 64k ... -
Why relativly bad colour on Spec compared to other 8bit?Why relatively bad colour on Spec compared to other 8-bit machines like the Master system or even c64? I understand the 8x8 block that you could hav…
... colour, and yet keep the memory burdon low, and thus make ... screen memory worked, as being very close to the Amiga Fast/Chip ... -
Broken ZX 48kHey all. I have acquired a broken ZX 48k. It looks in good condition - tried the membrane and it is working with my other 48k very well. When you tu…
... concert with one of the memory chips belonging to lower 16K ... />
You should download a copy of the Spectrum service manual ... properly afterwards, check the lower memory ICs.
[ This Message ... -
games written using game writng programsI was reading through some issues of crash not long back and one article was about some 16 year old that wrote Frank n stein for the speccy(never pla…
... a green background), in my copy (perhaps because it was a ... complimentary demo copy) the rotate routine didn't ... particular, to ditch it from memory one was supposed to type ... -
games written using game writng programsI was reading through some issues of crash not long back and one article was about some 16 year old that wrote Frank n stein for the speccy(never pla…
... Lighting? Brings back an annoying memory of when I bought SCOPE ... little more than half as fast as regular Spectrum Basic.
Starting from scratchHello, I'd lack to have a crack at writing a Spectrum game. I have very limited programming experience from mucking around with javascript and VB an…
... to create mind-blowing multicolour, fast paced smooth action games with ... of C and grab a copy of the z88dk, it's ...Sparky eZX-BASIC Project in need of FPGA ExpertYou probably are not familiar with this project, but it is a computer system based on Zilog's new eZ80 chip and the OS is a superset of ZX BASIC. Ju…
... 16 megabytes of linear addressable memory, no bank switching. Also, most ... serial ports can work that fast). Text and text programs work ...Programming Sound EffectsHi guys, Have decided, probably due in some way to my midlife crisis, to tart up and re-release (or even just re-lease) the old 48K Speccy games I w…
... is at least twice as fast as the bandwidth of the ... .
The amount of memory taken by the sample increases ...Interesting Custom LoadersHi everyone, I was just thinking about custom loaders on the spectrum and I thought I'd ask you all what you thought was the best one. I'd have to …
... made a copy of the ROM routine, then changed the memory locations ...Sparky eZX-BASIC Project in need of FPGA ExpertYou probably are not familiar with this project, but it is a computer system based on Zilog's new eZ80 chip and the OS is a superset of ZX BASIC. Ju…
... emulate bank selection of memory using the 24 bit ... just bank select the memory like the old CPC ... because of its extremely fast Z80 code execution and ... the eZ80 as a fast Z80. Which means the ...
Their goal was a fast super CPC compatible computer. I ...Announce: EmuZWin 2.5 Release 2.2 Post-FinalEmuZWin Version 2.5 Release 2.2 post-FINAL (16-Oct-2004): [-] A small pause added between TAP blocks while loading tape from .TAP image (otherwise s…
... no way to cut and copy small graphic data and the ... emulator just gives a message "copy failed".
Or viceversa when ... to paste something into a memory location with 8 pixel whidth ... for me to cut and copy that data and work on ...BitTorrent - some questionsOk, I've heard quite a bit about BitTorrent now and have read up some stuff on it, but I still need some answers on this one. Since many specchums se…
... /> I totally disagree. On my copy of torrentstorm I limit my ... won't get the same fast download speeds, just ideally you ... downloads wouldn't be as fast as could be found with ...Docking in EliteThis is a pretty complicated game, but I want to learn how to play it since some people think it's the best game of all time. I've got the insruction…
... towards the station (not too fast) and when you get close ... that came with my speccy copy btw) on my site as ...Opinions on Sweevos World and I Of The MaskThe 3D era was well and truly underway when these two games came out. I Of The Mask was late 1985 and Sweevos World was early 1986. Both got Crash S…
... many within it`s tiny memory, even though there`s only ... , especially when you start shiftin` fast.... and all the other 3D ...spectrum disks for saleI have 296 titles on around 200 disks for sale. Offering them on here first before ebay gets them. Contact me at [email="cluncastle@hotmail.com"]clun…
... peice of software holds a memory. Does this make sence ?. I ... didnt give in or react fast enough to the blizzard of ...A bit late, but 10 years of PlayStaion! My thoughts.I think the acual Aniversary of the Playstion release was a couple of weeks ago, but I picked up GamesTM today and it has a big feature about it (bes…
... it was tricky. configure the memory -- what kind? EMS? XMS? Do ... I have enough base memory? Oh, no, the computer doesn ... were cheap, you could still copy and pirate games, they had ...A bit late, but 10 years of PlayStaion! My thoughts.I think the acual Aniversary of the Playstion release was a couple of weeks ago, but I picked up GamesTM today and it has a big feature about it (bes…
... hard to copy. CD writers on the other hand were fast becoming ...A bit late, but 10 years of PlayStaion! My thoughts.I think the acual Aniversary of the Playstion release was a couple of weeks ago, but I picked up GamesTM today and it has a big feature about it (bes…
... hard to copy. CD writers on the other hand were fast becoming ...fzx32 on GP32 progressing nicelyJust to let you know that Rlyeh is working hard on his ZX Spectrum emulator fZX32 for the GP32 and should be released in the near future. Its based…
... 0 @ 133 mhz with contended memory and sound emulation,
- No ... #10 tapes),
- Preliminary contended memory emulation (multicolor effects),
- Preliminary ... -4-roms bug fixed)
- Fast fileselector (able to scan some ...
